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Contents

README

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HC18P122L-SOP16-T

Shanghai Holychip Elec · Microcontroller Units (MCUs/MPUs/SOCs) · SOP-16

HC18P122L-SOP16-T from Shanghai Holychip Elec, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PORTA0 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 0 analog input, 12-bit PWM0 output, and programming clock input.
2 PORTB2 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 11 analog input and INT0 external interrupt input.
3 VDD power_in Power supply input voltage, operating range 2.4V to 5.5V.
4 PORTA2 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 2 analog input and internal RC oscillator output in test mode.
5 PORTB1 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 10 analog input.
6 VSS power_in Power supply ground (negative voltage reference).
7 PORTA1 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 1 analog input, 12-bit PWM01 output with fixed phase relationship to PWM0, and programming data input/output.
8 PORTA4 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 4 analog input and ADC reference voltage input (VREF).
9 PORTB0 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 9 analog input.
10 PORTF2 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt.
11 PORTF1 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt.
12 PORTF0 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt.
13 PORTF3 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt.
14 PORTA7 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 7 analog input.
15 PORTA6 bidirectional Input/output port with programmable pull-up/pull-down and port level change interrupt; supports ADC channel 6 analog input.
16 PORTB5 bidirectional Input/output port capable of only outputting logic 0 with port level change interrupt; also serves as reset input (MCLRB, active low), programming high voltage power input (VPP), and PWM fault detection input (FLT).

Key specifications

Parameter Value
Manufacturer Shanghai Holychip Elec
Package SOP-16
Category Single Chip Microcomputer/Microcontroller
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VDD 工作电压 (Operating voltage) VDD 2.4 5.5 V Fsys = 8MHz,2T 11
VDD 工作电压 (Operating voltage) VDD 3.6 5.5 V Fsys = 16MHz,2T 11
Isb4 静态电流 (Standby current) Isb4 1 μA VDD 3V; 休眠模式,WDT 禁止,无负载 11
外部高频晶振 (External high-frequency crystal) FOSH 4 20 MHz 3.0~5.5V 12
VDD 上升时间 (VDD rise time) TVDD 100 ms VDD 5V 12
欠压复位响应时间 (BOR response time) TBOR 100 ns VDD 5V 12
复位脉冲时间 (Reset pulse time) TMCLRB 200 us VDD 5V 12
储存温度 (Storage temperature) -50 125 ℃ 11
工作温度 (Operating temperature) -40 85 ℃ 11
电源供应电压 (Supply voltage) -0.3 6 V printed as VSS-0.3V~VSS+6.0V (offsets from VSS) 11
端口输入电压 (Port input voltage) -0.3 0.3 V printed as VSS-0.3V~VDD+0.3V (offsets from VSS and VDD) 11

CAD (KiCad official)

  • Symbol: HC18P122L-SOP16-T
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: hc18p122l-sop16-t-etched.step / hc18p122l-sop16-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hc18p122l-sop16-t.step / hc18p122l-sop16-t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Shanghai Holychip Elec datasheet (91 pp, sha256 0ac16955667b6bf6, retrieved 2026-10-21, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF